<template>
  <div>
    <h1>当前求和为:{{ sum }}</h1>
    <h3>当前求和放大10倍为:{{ bigSum }}</h3>
    <h3>我在{{ school }},学习{{ subject }}</h3>
    <h3 style="color: red">Person组件的总人数是:{{ personList.length }}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="increment(n)">+</button>
    <button @click="deincrement(n)">-</button>
    <button @click="incrementOdd(n)">当前求和为奇数再加</button>
    <button @click="incrementWait(n)">等一等再加</button>
  </div>
</template>

<script>
import { mapState, mapGetters, mapMutations, mapActions } from "vuex";
export default {
  name: "Count",
  data() {
    return {
      n: 1,
    };
  },
  computed: {
    //借助mapState生成计算属性,从state中读取数据.(数组写法)
    ...mapState("countAbout", ["sum", "school", "subject"]),
    ...mapState("personAbout", ["personList"]),
    //借助mapGetters生成计算属性,从getters中读取数据.(数组写法)
    ...mapGetters("countAbout", ["bigSum"]),
  },
  methods: {
    //借助mapMutations生成: increment,deincrement(对象写法)
    ...mapMutations("countAbout", { increment: "JIA", deincrement: "JIAN" }),
    //借助mapActions生成: incrementOdd,incrementWait(对象写法)
    ...mapActions("countAbout", { incrementOdd: "jiaOdd", incrementWait: "jiaWait", }),
  },
  mounted() {
    // console.log("Count", this);
    //
    // const x = mapState({ he: "sum", xuexiao: "school", xueke: "subject" });
    // console.log(x);
  },
};
</script>

<style>
button {
  margin-left: 5px;
}
</style>